MySQL server has gone away

You will need to check with your host see if you Mysql server problems. In phpmydmin see if you still have your database on server.

Hi,
I will contact the host. But:
the database seems working fine. I also have an old version of wp running, with no content, and this also works (all though the theme is broken):
https://nautilus-amsterdam.com/wp-oud/

Switch to default theme and see if that is working

Can you tell me how to do that if I only have ftp access?

You mean you can not log in wordpress admin if so using ftp log in and on right box browse to wp-content/themes folder in themes folder you will have your theme rename that theme like add -hold after the name.

thanks. I did it: no changes…

looks like you have permission problem where do have your wordpress files and folders are they in wp or wp-oud folder

wp

may be you have the urls wrong in Settings>>>>General as they should be https://nautilus-amsterdam.com/wp
where did you get
https://nautilus-amsterdam.com/wp-oud/ from.

the two are not connected. wp-oud is an old installation, which i don’t use. In wp I installed a new wordpress installation and it already runs for a few month. I just get a lot of errors in the errorlog on ‘MySQL server has gone away bij query’. Do you think this has anything to do with it?

I get 500 error when I go on https://nautilus-amsterdam.com/wp and all your links on https://nautilus-amsterdam.com/wp-oud/ are pointing to wp so there is problem your setting up.

wp-oud was first set up in the wp folder. Thats why the links still go there..